A 0.44 g sample of an organic compound containing only carbon, hydrogen, and oxygen is burnt, yielding 0.88 g of CO2. What is the percentage of carbon?
Q1. A 0.44 g sample of an organic compound containing only carbon, hydrogen, and oxygen is burnt, yielding 0.88 g of CO2. What is the percentage of carbon?
Answer: 54.54%
Explanation: Calculation uses mass of CO2 and sample. 27.27% is wrong because it ignores the 12/44 ratio of carbon in CO2.